[PATCH v2] ARM: dts: sun7i: Correct USB regulators on pcDuino v3 Nano
maxime.ripard at free-electrons.com
Sun Oct 11 10:27:43 PDT 2015
On Sat, Oct 10, 2015 at 01:52:52PM +0100, Adam Sampson wrote:
> The LinkSprite pcDuino v3 Nano's two USB host ports are powered by a
> single RT9701GB regulator, which has its enable input tied to the A20's
> PD2 pin, pulled up to 3v3 via a 10k resistor.
> However, the script.bin that shipped with the device listed PH11 and PH3
> as Vbus control pins for the two USB ports. Neither of these are
> actually connected to anything.
> Siarhei Siamashka spotted this problem while reviewing the other
> LinkSprite boards. This patch fixes it by only defining a single
> regulator, controlled by PD2. Testing shows that the USB ports are now
> (correctly) only powered up once the USB PHY driver is loaded.
> Reported-by: Siarhei Siamashka <siarhei.siamashka at gmail.com>
> Signed-off-by: Adam Sampson <ats at offog.org>
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
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